A can complete a work in 10 days, and B can complete the same work in 15 days. If they work together, how many days will they take to complete the work?
Show answer & explanation
Correct answer: B
Explanation
Given:
A completes the work in 10 days.
B completes the work in 15 days.
Combined work rate
= 1/10 + 1/15
= (3 + 2)/30
= 5/30
= 1/6
Time taken together
= 1 ÷ (1/6)
= 6 days
Correct Answer: 6 days (Option 2)